forked from luck/tmp_suning_uos_patched
[PATCH] correct sys_shmget allocation check
As written, sys_shmget will return ENOSPC when one page is still available for allocation. This patch corrects the test. Signed-off-by: Guy Streeter <guy.streeter+lkml@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --
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@ -279,7 +279,7 @@ static int newseg (struct ipc_namespace *ns, key_t key, int shmflg, size_t size)
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if (size < SHMMIN || size > ns->shm_ctlmax)
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return -EINVAL;
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if (ns->shm_tot + numpages >= ns->shm_ctlall)
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if (ns->shm_tot + numpages > ns->shm_ctlall)
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return -ENOSPC;
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shp = ipc_rcu_alloc(sizeof(*shp));
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